Related Clues:

• The Zero-___ Theory
• Total amount
• Latin 22-Across
• Latin 51-Across
• 'Cogito, ergo --'
• Dim follower
• Substance companion
• Bottom line amount
• Abacus user's goal
• Arithmetic solution
• Combination number?
• Base of a column
• Addition conclusion
• Excel command
• Result of considering the pluses?